BMW Cooling System Parts & Accessories for BMW 3 Series G20 (2019+)

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The cooling system is arguably the weakest point in numerous BMWs. If you drive an aging BMW or plan on taking your car to the track like we do, we recommend beefing up your cooling system before going to the track. Generally, the main components in your cooling system that are prone to failure include the following: expansion tank, factory hoses, water pump, thermostat, fan (especially if your vehicle comes factory with a clutch fan), and radiator. Factory BMW expansion tanks are plastic and prone to either breaking off at connection points or combusting. As factory rubber hoses age they either crack or break over time - we offer silicone cooling hose upgrades for most applications to avoid future failures. If you have an older vehicle, your water pump likely comes from the factory with a plastic impeller - we offer upgraded water pumps with metal impellers that are far more reliable. Newer model BMWs utilize electric water pumps - BMW spent millions of dollars engineering these water pumps, but they fail so often that we recommend replacing at 60,000 mile service intervals to avoid being stranded on the side of the road. In terms of thermostats, we offer various upgraded thermostats for racing applications. If your BMW utilizes a clutch fan from the factory, we have several options available in terms of universal electric fans - we recommend replacing these to avoid sending brittle plastic fan blades through your hood. For radiators, we recommend swapping out your radiator for one that does not use plastic connection points like your factory radiator.

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OEM Style Hose Clamps
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Turner Motorsport - Corporate Logo
T#:338927
Part#: HOSE-CLAMPS
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Hose clamps for radiator hoses, coolant hoses, vacuum hoses, or intake hoses. These hose clamps are the same style as your OEM hoses with a smooth inside band to prevent cutting into the hose material.
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Genuine BMW - Corporate Logo
T#:600648
Part#: 83192468442
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$ 34.12 USD
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$ 34.12 USD
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Ensure optimal cooling for your BMW with Genuine BMW Coolant, providing the quality and performance your vehicle deserves. When it comes to maintaining your BMW, replacing old or worn-out parts with factory replacements is essential, and fluids are no exception. Experience the benefits of Genuine BMW Coolant: Specially designed for BMW vehicles. Factory replacement for optimal performance. Addresses flaws in the factory cooling system. Prevents antifreeze loss in both cold and hot weather. Recognizable green color for easy identification. BMW HT-12 can be used in any vehicle that currently contains G48 coolant (blue), but G48 should not continue to be used in vehicles that were originally filled with HT-12. (see compatibility image) This HT-12 Antifreeze/Coolant is exclusively formulated and produced for BMW to protect your engine year-round when used as directed. It fulfills the very high standards and requirements set by BMW to help protect the engine against freezing, boil over, corrosion, and excessive silicate gel precipitation. This ethylene glycol-based antifreeze contains no nitrites or phosphate, greatly reducing the possibility of harmful deposit formation. BMW antifreeze provides protection for metals such as cast iron, steel, and aluminum.
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Genuine BMW - Corporate Logo
T#:144381
Part#: 61369198302
In Stock
4% off MSRP $ 47.99
$ 45.99 USD
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4% off MSRP $ 47.99
$ 45.99 USD
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Genuine BMW Relay - 130A
This item fits the following BMW Chassis:
F01,F02,F06,F10,F12,F13,F15,F16,F22,F30,F31,F32,F33,F34,F36,F80 M3,F82 M4,F83,I12 i8


Genuine BMW - Corporate Logo
T#:29699315
Part#: 17135A1BD89
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$ 27.41 USD
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$ 27.41 USD
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Genuine BMW Cover Lid
This item fits the following BMW Chassis:
E70 X5M,E71 X6M,E70 X5,E71 X6,F01,F02,F06,F10,F12,F13,F15,F16,F30,F80 M3,F82 M4,F83,i3i12


Genuine BMW - Corporate Logo
T#:620753
Part#: 11538650983
Ships Jul 1, 2025
6% off MSRP $ 108.99
$ 102.99 USD
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6% off MSRP $ 108.99
$ 102.99 USD
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Connects from the top coolant port on the water pump to the cylinder head
Genuine BMW - Corporate Logo
T#:625185
Part#: 17118666740
In Stock
Sale - Save 15% $ 510.99
$ 434.23 USD
Sale - Save 15% $ 510.99
$ 434.23 USD
To prevent overheating problems, replace a leaking radiator promptly.

Genuine BMW - Corporate Logo
T#:528940
Part#: 11518632587
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$ 30.06 USD
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This gasket needs to be replaced when splitting apart your pulley housing from the water pump. Gasket that goes between the coolant pump and the coolant pump front pulley assembly.
Genuine BMW - Corporate Logo
T#:546143
Part#: 11538606278
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Sale - Save 4% $ 72.99
$ 70.01 USD
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Hose coming off the small fitting on the thermostat. Replacement coolant hose for damaged or worn items. Dont forget to change all associated parts when doing a cooling service, or to fix a leak.

Genuine BMW - Corporate Logo
T#:528939
Part#: 11518632586
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$ 31.17 USD
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$ 31.17 USD
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Ensure your coolant system is working properly and free of leaks. Gaskets and seals are necessary when replacing associated parts. Gasket that goes between the coolant pump and the engine block.

Genuine BMW - Corporate Logo
T#:636029
Part#: 11518482250
In Stock
Sale - Save 4% $ 161.99
$ 156.32 USD
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$ 156.32 USD
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Genuine BMW - Corporate Logo
T#:620734
Part#: 17128654820
Ships in 1-2 days
8% off MSRP $ 85.99
$ 78.99 USD
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8% off MSRP $ 85.99
$ 78.99 USD
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This item fits the following BMWs:

M340i G20 M340iX G20

Genuine BMW - Corporate Logo
T#:541339
Part#: 11428583901
Ships Jul 1, 2025
Sale - Save 3% $ 216.99
$ 210.11 USD
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$ 210.11 USD
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Engine oil coolers help reduce the oil temperature, preventing the oil from breaking down prematurely and losing its lubricating properties. Engine oil coolers play a crucial role in regulating oil temperature, ensuring proper lubrication, and optimizing engine performance and longevity. Engine oil that is too hot drops in viscosity and does not provide adequate lubrication to sensitive engine components such as bearings, which can fail catastrophically if not properly lubricated. If your engine oil cooler has been damaged or has failed we recommend replacing it to ensure no damage occurs to your engine.
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Genuine BMW - Corporate Logo
T#:602507
Part#: 11518651287
Ships Jul 1, 2025
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$ 68.76 USD
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$ 68.76 USD
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Auxillary water pumps are electric water pumps that pump coolant to critical components of your BMW. A failing pump can cause excessive noise and intermittent cooling issues, leading to potential damage if not replaced quickly enough. If the electric motor dies completely, chances are any parts downstream from the pump will overheat and fail, leading to costly repairs and replacements.
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Genuine BMW - Corporate Logo
T#:617367
Part#: 11538642560
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Sale - Save 5% $ 394.99
$ 374.88 USD
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$ 374.88 USD
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Modern BMW thermostats are electronically controlled, allowing the DME/ECU to directly regulate coolant flow throughout the engine and its components. This system enables the thermostat to operate based on a broader range of temperature inputs, such as coolant, cylinder head, engine block, and oil temperatures, for more refined control of engine warm-up and temperature across diverse conditions. Unlike traditional thermostats, which simply open or close to permit coolant flow, this system uses a rotary valve for more dynamic control. The rotary valve adjusts to various positions, allowing for partial or full coolant flow to designated passageways as needed. This precision control helps your BMW's engine reach optimal temperatures quickly and ensures efficient heat management under various driving conditions.
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Genuine BMW - Corporate Logo
T#:617366
Part#: 11538642559
In Stock
Sale - Save 5% $ 434.99
$ 412.34 USD
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$ 412.34 USD
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Genuine BMW electronic thermostat that is controlled by the car's computer for optimal control over the engine and coolant's temperature.

Genuine BMW - Corporate Logo
T#:6533
Part#: 07129952104
In Stock
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$ 2.55 USD
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$ 2.55 USD
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GENUINE BMW HOSE CLAMP 07129952104

Genuine BMW - Corporate Logo
T#:624783
Part#: 11539494424
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$ 11.26 USD
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This preformed seal is an o-ring seal that seals the connection between the thermostat housing/heat management module and the engine block. This seal is the larger of two seals located on the side of the heat management module.
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Genuine BMW - Corporate Logo
T#:622579
Part#: 11539425963
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$ 3.94 USD
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$ 3.94 USD
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Seals the connection between the Heat Management Module and the water pump housing

Genuine BMW - Corporate Logo
T#:526204
Part#: 11538658572
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$ 7.91 USD
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$ 7.91 USD
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O ring that seals the thermostat to the coolant pump. New seals are a must when doing any repairs.
Genuine BMW - Corporate Logo
T#:624784
Part#: 11539494425
In Stock
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$ 11.26 USD
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$ 11.26 USD
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This preformed seal is an o-ring seal that seals the connection between the thermostat housing/heat management module and the engine block. This seal is the larger of two seals located on the side of the heat management module.
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Genuine BMW - Corporate Logo
T#:222845
Part#: 11538658571
In Stock
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$ 11.68 USD
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$ 11.68 USD
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Gasket that goes between the thermostat and radiator return pipe. Gaskets and seals are a wear item that should be replaced in conjunction with associated parts.

Genuine BMW Water Pump & Thermostat Kit - BMW B58C B58D (B58TU) ...
For models without the 48V Mild Hybrid package
Genuine BMW - Corporate Logo
T#:29333997
Part#: 11518482251KT
In Stock
Sale - Save 3% $ 681.99
$ 661.37 USD
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Sale - Save 3% $ 681.99
$ 661.37 USD
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If your water pump or thermostat has failed, this kit includes all the basic components needed to replace and restore your cooling system! Included: Water Pump Thermostat Housing (aka Heat Management Module) Coolant Outlet Pipe (L-Pipe) Gaskets & Seals
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Genuine BMW - Corporate Logo
T#:29333998
Part#: 11515A444F4KT
In Stock
Sale - Save 3% $ 681.99
$ 661.37 USD
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Sale - Save 3% $ 681.99
$ 661.37 USD
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If your water pump or thermostat has failed, this kit includes all the basic components needed to replace and restore your cooling system! Included: Water Pump Thermostat Housing (aka Heat Management Module) Coolant Outlet Pipe (L-Pipe) Gaskets & Seals
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Genuine BMW - Corporate Logo
T#:545300
Part#: 11538630023
Ships Jul 7, 2025
Sale - Save 3% $ 149.99
$ 145.31 USD
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Sale - Save 3% $ 149.99
$ 145.31 USD
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Coolant pipe that runs from the thermostat next to the engine block. Make sure your cooling system is working properly and leak free. When your in the tight spaces doing a service it makes sense to change all associated parts.
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Genuine BMW Cooling Pump with Support - 11518650986
For vehicles without Energy Recuperation System (O1CE) produced before 07/20
Genuine BMW - Corporate Logo
T#:606623
Part#: 11518650986
Ships Jul 1, 2025
Sale - Save 3% $ 263.99
$ 255.81 USD
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$ 255.81 USD
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This water pump is provided with all associated installation components, including:

11518482251 - Water Pump 11518650986 - Water Pump Bracket to Engine Block 11518482263 - Water Pump profile Gasket 11518482264 - Profile Gasket for Bracket to Engine Block 11518482258 - Coolant Pipe to Water Pump 11518482260 - O-ring Seal for Coolant Pipe

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Genuine BMW - Corporate Logo
T#:613991
Part#: 17428666819
Ships Jul 1, 2025
Sale - Save 5% $ 1,271.99
$ 1,207.73 USD
Sale - Save 5% $ 1,271.99
$ 1,207.73 USD

Enhance Engine Cooling with Genuine BMW Fan Housing with Fan (Part Number: 17428666819)

Maintain your vehicle's cooling system efficiency with the Genuine BMW Fan Housing with Fan (Part Number: 17428666819). This authentic BMW replacement component adheres to the manufacturer's stringent quality standards, ensuring precision engineering and durability.

Designed to seamlessly fit BMW vehicles, this fan housing with a fan assembly guarantees optimal cooling performance, essential for enhancing your vehicle's longevity and overall performance. Rely on Genuine BMW parts for their perfect integration and dependable functionality.

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Genuine BMW - Corporate Logo
T#:613575
Part#: 64116834917
Ships Jul 1, 2025
Sale - Save 3% $ 257.99
$ 249.54 USD
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$ 249.54 USD
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eplace your faulty or failing electric water pump with this Genuine BMW pump for guaranteed reliability. This water pump feeds coolant to the turbo, keeping temperatures optimal for performance and smooth operation.
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Cap
D=6
Genuine BMW - Corporate Logo
T#:191368
Part#: 17128515062
Ships Jul 1, 2025
Sale - Save 5% $ 10.99
$ 10.43 USD
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$ 10.43 USD
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Genuine BMW Cap -
This item fits the following BMW Chassis:
F15,F25 X3

Fits BMW Engines including:
N57N


Genuine BMW - Corporate Logo
T#:222843
Part#: 11428583897
Ships Jul 2, 2025
Sale - Save 3% $ 48.99
$ 47.52 USD
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$ 47.52 USD
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Situated on the engine's oil filter housing, this set of gaskets plays a crucial role in sealing the housing to the engine block. Over time, exposure to heat and oil can cause these rubber gaskets to become brittle, compromising their ability to seal the mating surfaces effectively.

Given that oil flows from the block to the filter housing, any leaks from these seals can lead to significant issues. Fortunately, BMW offers a comprehensive set of these gaskets, providing a solution to all oil leaks and restoring your vehicle to optimal performance.

How can you identify if your oil cooler gaskets are leaking?

Oil drips beneath the car when it's parked. Visible oil accumulation on the intake/heat exchanger side of the engine block. Frequent low oil level warnings during driving.

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Genuine BMW - Corporate Logo
T#:28891
Part#: 07129905494
In Stock
$ 6.99 USD
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Genuine water pump hardware. M6x16-8.8. 6 of these screws are found in association with the water pump

Genuine BMW - Corporate Logo
T#:618224
Part#: 17128654854
Ships Jul 1, 2025
Sale - Save 3% $ 117.99
$ 114.43 USD
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Sale - Save 3% $ 117.99
$ 114.43 USD
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Genuine BMW - Corporate Logo
T#:618260
Part#: 17128654821
Ships Jul 3, 2025
Sale - Save 3% $ 78.99
$ 76.29 USD
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Sale - Save 3% $ 78.99
$ 76.29 USD
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This item fits the following BMWs:

M340i G20 M340iX G20